What engine?
I can see that price as that requires removing the turbo, draining coolant, and all the gaskets and o-rings that are required in that job not to mention the marmon exhaust clamp if it breaks, my question is why did the manifold crack ? Loose motor mounts allowing engine to torque against the exhaust, exhaust temps to high from turbo or air to air cooler, also I would ask to see the manifold because there is a stainless accordion style tube off the egr valve that do go bad more often, just above the manifold but a lot cheaper to replace.
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